Ideal for tire changes. This impact wrench with a 1/2 inch square drive loosens stubborn screws and nuts with powerful rotational movements, but can also drive long screws into metal or wooden beams. The applied torque is determined by the time the impact mechanism acts on the screw. The maximum torque is 400 Nm with 3,300 impacts per minute. M20 standard screws and M16 high-strength screws are compatible. Handling is made easier by a three-stage electronic torque limiter. This limits the maximum impact rate that can be set via the throttle, preventing damage to screw heads, bits, or sockets due to careless throttle control. The limit can be selected in three stages via a button and is indicated by an LED display (3 LEDs = 400 Nm max, 2 LEDs = 300 Nm max, 1 LED = 200 Nm max). Sensitive speed regulation with 6 levels. To optimally control the power of the compact device, a heavily geared transmission has been installed. This allows for a well-controlled engagement of the machine, especially in conjunction with the sensitive speed regulation. An LED light ensures optimal illumination. Brushless DC motor, fan-cooled with a run-on brake and quick stop.